Self and willis f



(No Model.) I 2 sheetssheet 1.

' s. R. WILMOT. Y

ROLLING MILL.

Patented July 17, 18483;.

` w j )Sn l' N STL y A L 5 i r" s s Y EN HMI- HHIIIHIIIIHHIIHIIIIIIHIIHI] MHIHHIHIIHUII I s HIIIHHIH I'HIHIIIHHH UNITEDSTATES PATENT OFFICE.

-sAMuEL E. wILMor, E BEIDeEroE'r, coNNEcrIcUTfAssIeNoE To HIM- sELE ANDWILLIS E. HoBBs, oE sAME PLACE.

ROLLING-MILL.

SPECIFICATION forming` part of Letters-Patent No. 281,595, dated'J'uly17, 1883.

Application filed October 27, 1882. i (No model.) V

To all whom t may concern,

Be it known that I, SAMUEL R. WILMor, of Bridgeport, in the countyofFairfield and State of Connecticut, .have invented a new and usefulImprovement in Rolling-Mills, of which the following is a 'specicatiom vAlthough certain features of my'invention are applicable Ltorolling-mills generally, the invention is more particularly intended tobe employed in rolling-mills of the kind shown and described in LettersPatent of the United States No. 222, 97 3, granted to me December 23,187 9. Such 4mills are particularly intended for reducing cold iron andsteel rapidly into pieces of great length andvery thin with fewannealings, whereby is secured the greatest perfection of metal with theleast waste by trimming, scaling, and -pickling. In mills of the kindabove described the lower working- 2o bearings, but is supported on andbetween two rolls.

The objects of my invention are to provide bearings of the upperworking-roll in a rolling-mill correspondingly upward and downwardtogether, and for rocking the said roll, or simultaneously increasingthe'pressure on one bearing and easing or relieving, the other bearingof pressure, when the metal is slightly thicker on one edge than theother, or has a tendency to run crooked; also, to prevent the metal,which is often thinner than paper, from rumpling as it is. fed betweenthe rolls, and to take out any wrinkles or rumples, and smooth themetal, and to guide and confine it as close as possible to the point ofcontact between the working-rolls; also, to provide a stripper forpreventing the metal as it leaves the line of pressure of theworking-rolls from clinging to the lower roll, or dropping down andpassing between the same and its rear supporting-roll and stripper,having bearings or pivotsmade of soft metal, so that in case themetalbecomes caught under the stripper (forming a jam) the strain or push onthe stripper will cut off the `pivots and throw'thestripper out, thuspreventing the 5o spoiling of any considerable amount of the roll isvery much smaller in size than the up- I per Working-roll, and has nonecks fitted inr a very convenient means for adjusting the metal and thestraining or breaking of any of the parts. v

To these ends the, invention consists in the combination, with the upperworking-roll, of devices hereinafter described, and set forth in theclaims, for adjusting and rocking the bearings of' said roll.

It also consists in a' feeder comprising a throat tapering toward theworking-rolls on its upper and lower surfaces, and a wedge tting looselyin the throat and adapted to be Adrawn in by the moving metal to flattenand smooth it, but which is provided with a stop which prevents it frombeing drawn into the throat sufficiently to clamp and hold the metal.

It also consists in the combination, with the .working-rolls, of astripper having a knifeedge which bears on the lower working-roll,

.and devices for supporting it in position and for adjusting it, all ofwhich features are hereinafter fully described.

In the accompanying drawings, Figure 1 rep sents a longitudinal verticalsection of a rollingmill embodying my invention. Fig. 2 represents atransverse vertical section thereof. 7 5 Fig. 3 represents a planthereof. Fig. 4 represents a plan of the stripper and its supportingarms or levers detached from other parts. Fig. 5 represents a transversesection, upon a much larger scale, ofthe working-rolls, the sup- 8oporting-rolls, the feeder, and the stripper; and Fig. 6 represents adetail sectional view, showing the manner of connecting the stripperwith its supporting arms or levers.

Similar letters of reference designate corresponding parts in all thefigures.

A designates the upper working-roll, and B the lower working-roll, whichis of small diameter, and which rests upon and is supported withoutordinary bearings wholly upon and between two supportingrolls, C. IIherolls A G C are provided with gears c, which all engage with and areoperated by an internal gear, D, upon a shaft, D, which is also providedwith a large drivinggear, D2. The necks of the upper working-rolls, A,are fitted in bearings b, which are vertically adjustable in housings E,and the supporting-rolls O' are supported in the usual fixed bearings.The

housings E are supported by a bed, E. The Ioo e A f 281.595

arrangement ofthe werkingrolls, the supporting-rolls C, and theiroperating mechanism is like that shown and described in my LettersPatent above mentioned.

I will rst describe the devices for adjusting the bearings b of theupper working-rolls, A.

Upon the top of the bearings b is a bar, F, which is adapted to be movedlongitudinally by means of a screw, c, operated by a handcrank, c', andwhich has upon its upper surface wedges d, upon which rest shoes orblocks c, having their lower surfaces inclined l correspondingly to thewedges d. The bar F is channeled on its upper surface or hasupwardly-projecting flanges on opposite sides, as shown in Fig. 2,between which the shoes or blocks e fit, and by which they are retainedin place laterally.

G designates the usual adjustingscrews, which fit in nuts inthe housingsE, and which are here shown as having corresponding threads, both beingright-hand threads. The lower ends of the screws G fit on or in theshoes or blocks c, and at the upper ends they are provided withworm-wheels G.

II designates a screw-shaft engaging with and arranged between thewheels G', and supported in fixed bearings ff7 as shown in Figs. 2 and3. This screw-shaft may be turned by a handle, II, and upon the shaft isa fixed co1- lar, g.

Between the bearing f and the fixed collar g is a slotted block orabutment, h, which prevents longitudinal movement of the shaft when inplace; but when the block or abutment is lifted off the shaft the lattercan be moved longitudinally sufficiently to disengage its worm or screwfrom the wheels G.

In setting the upper roll, A, the screw-shaft II is disengaged from thewheels G, as above described, and the screws G are turned down by handuntil the shoes e have both a solid bearing on the wedges d. The screwHis then turned into engagement with the wheels G, and the block orabutment 7L inserted between the bearing f and fixed collar g. rlhchand-crank e is then turned to move the bar F, and so place the desiredpressure on the bearings b. By employing an index in connection with thescrew c the bearings may be adjusted definite distances. For example,one half-turn of the screw c might effect a difference of one-thousandthof an inch in the thickness of the metal. If it is found that the metalis thicker on one side than the other, or runs crooked, the wormshaft Hmay be turned during the rolling 0peration to pinch tighter on onebearing I) and ease up on the other; and by this means I am enabled toroll metal of exactly uniform thickness, and straight. j

I will now describe the feeder, which is best shown in Fig. 5.

I designates the tapering throat, which is composed of a top, 17, abottom, j, and sides k, all here shown as made integral. rIhe topi andbottom j converge toward the rolls, and

the feeder may be supported by fitting in grooves Z in the housings E.

In the throat I is a wedge, I', which fits snugly between the sidesthereof, and is provided with a shoulder, m, which forms a stop forlimiting the inward movement ofthcwedge. As shown in Fig. 5, the stop mis against the end of the top t', and the wedge cannot enter fartherinto the throat. The strip of metal n is fed in below the wedge I, andthe wedge is drawn in by the moving metal and smooths the latter, andprevents it from passing between the working-rollsAB in a rumpledcondition. Before the wedge can clamp the metal a so as to hold it, thestop m strikes the top i, and the wedge can enter ne farther into thethroat. This feeder prevents lateral movement of the metal a, andsupports the metal close to the line of contact with the rolls, so thatit must pass between the rolls in a smooth condition.

I will now describe the stripper, which is best shown in Figs. 4, 5, and6. f

The stripper J consists of a piece or bar of steel of the transversesection shown in Fig. 5, having a sharp or knife edge which rests on thelower working-roll, B, as near as possible to its center, and which alsorests on the supporting-roll C. The stripper is supported at both endsby bent levers or arms J ,which are separately fulcrumed at 0 to thehousings E, and are connected at their lower ends by a rod or bar, J 2.

To the rod or bar J 2 is attached a hook-bolt, p, which passes through aslotted bar, p', and is secured thereto by nuts 9. By adjusting thesenuts the stripper J maybe made to bear with greater or less force on therollsB C, and by adjusting the bolt p horizontally nearer to one endthan the other of the bar or rod J 2 the stripper may be made to pressdown with equal force along its entire length in case there should beany inaccuracies in construction. As here represented, the rolls A and Care rabbeted or turned down at the ends to accommodate the levers J Themanner of connecting the stripper .I with the levers J is best shown inFig. 6.

In the ends of the levers J are inserted steel bushings r, and in thebushings are fitted pins s, of soft metal--such as ironwhich enter thestripper. Incase ofthe metal strikingthe ends of the edge of thestripper, instead of passing over it and rumpling up,the strain on thestripper will cut off the pins or pivots s of the stripper, and thelatter will be thrown out. I thus prevent the waste and the clogging andstraining of the parts which would result from the metal passing underthe stripper or between the rolls.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination, with the upper working-roll of a rolling-mill andits bearings, of adjusting-screws for the bearings, shoes or blocks uponwhich the screws act, and which have inclined lower faces, a wedge-barfitting and adapted to be moved longitudinally be- IOO IIO

tween said bearings and shoes or blocks, and

mechanism, independent of said wedge-bar,

for simultaneously increasing the pressure on one bearing and relievingor diminishing the 5 pressure on the other bearing, substantially asherein described.V

2. The combination of the roll A, its bearings b, the wedge-bar F,channeled on its up- 'per side, and its adjusting-screw c, the inclinedshoes e, which fit in the channeled wedge-bar F, and are retained inplace laterally thereby, and adjustingscrew G, all substantially asdescribed.

3. The combination, with the upper working-roll of the rolling-mill andits bearings, of screws for exerting a pressure on the bearings, a shaftmounted in iixed bearings, and mechanism for imparting motion from saidshaftv equally and simultaneously to both said screws, to increase thepressure on one bearing and relieve or lessen the pressure on the otherbearing, substantially as and for the purpose described.

4. The combination, with the upper working-roll of a rolling-mill andits bearings, of screws for exerting a pressure onthe bearings, andhaving corresponding threads, either right or left hand, a worm-wheel,secured directly upon the upper end of each screw, and a worm or screwmounted in iixed bearings, and ar-l ranged between and engaging withboth said wheels to turn them, and the screws to which they areattached, in opposite directions, substantially as and for the purposedescribed.

5. The combination of the upper workingroll A, its bearings b,thewedge-bar-F, and inclined shoes e, the screws G, the wormwheels G',and the worm or screw H, substantially as herein described.

6. The combination of the worm-wheels G, 4c the screw or worm shaft H,provided with a fixed collar, g, the bearings ff', and the re'- movablepiece h, tted between said collar and one of said bearings,substantially as herein described.

7. The combination, with the working-rolls of a rolling-mill, of afeeder composed of a tapering throat, and a wedge tting therein andprovided with a stop to limit its movement into said thread,substantially as and for the 5o purpose herein described.

8. The combination, with the lower working-roll of a rolling-mill, of astripper having a knife-edge adapted to rest thereon, supports for thestripper at each end thereof, and softmetal pins connecting the stripperwith said supports, and adapted to be cut ofi` by the rolled metalstriking the edge of the stripper,instead of passing over it,substantially as herein described.

9. The combination of the working-roll B, the stripper J, the levers J',provided with bushings r, and the pins connecting the stripper with saidlevers, substantially as herein described.

S. R. WILMOT.

